Hi CUET aspirants, Welcome to Amans Maths Blogs (AMBIPi). In this post, you will get CUET Physics Mock Test Dual Nature of Radiation and Matter AMBIPi. This CUET Physics Mock Test is of the Physics chapter Dual Nature of Radiation and Matter. Before solving these CUET Physics questions, you must read CUET Physics Notes, which helps you to revise CUET Physics Syllabus and then you must need to solve CUET Previous Years Questions Papers.
CUET Physics Mock Test
CUET Physics Question No: 1
The momentum of a photon is 3.3 × 10–29 Kg–m/s. Its frequency will be
Option A : 3 × 103 Hz
Option B : 6 × 103 Hz
Option C : 7.5 × 1012 Hz
Option D : 1.5 × 1013 Hz
Show/Hide Answer Key
Option D: 1.5 × 1013 Hz
p = hv/c
⇒ v = pc/ h = 3.3 x 10-29 x 3 x 10 8 / 6.6 x 1034
= 1.5 x 1013 Hz
CUET Exam Physics Question No: 2
The momentum of a photon is 2 × 10–16 gm–cm/ sec. Its energy is
Option A : 0.61 × 10–26 erg
Option B : 2.0 × 10–26 erg
Option C : 6 × 10–6 erg
Option D : 6 × 10–8 erg
Show/Hide Answer Key
Option C: 6 × 10–6 erg
p = E/c ⇒ E = p x c = 2x 10 – 16 x ( 3 x 1010)
= 6x 10-6 erg
CUET UG Physics Question No: 3
The momentum of the photon of wavelength 5000 Å will be
Option A : 1.3 × 10–27 Kg-m/s
Option B : 1.3 × 10–28 Kg-m/s
Option C : 4 × 1029 Kg-m/s
Option D : 4 × 10–18 Kg-m/s
Show/Hide Answer Key
Option A: 1.3 × 10–27 Kg-m/s
p = h/ λ = 6.6 x 10-34 / (5000 x 10-10 ) = 1.3 x 10-27 Kg-m/s
CUET Domain Subject Physics Question No: 4
The momentum of a photon of energy h will be
Option A : hv
Option B : hv/c
Option C : hvc
Option D : h/v
Show/Hide Answer Key
Option B: hv/c
P = e/c = hv /c
CUET BSc Physics Question No: 5
A photon in motion has a mass
Option A : c/hv
Option B : h/v
Option C : hv
Option D : hv/c2
Show/Hide Answer Key
Option D: hv/c2
E = hv = mc2 m = hv/ c2
CUET Entrance Exam Physics Question No: 6
The energy of a photon is E = h and the momentum of photon p= h/λ, then the velocity of photon will be
Option A : E/P
Option B : EP
Option C : (E/P)2
Option D : 3X108 m/s
Show/Hide Answer Key
Option A: E/P
Momentum of photon c = E/P
⇒ velocity of photon c = E/P
CUET Exam Question No: 7
An important spectral emission line has a wavelength of 21 cm. The corresponding photon energy is
Option A : 5.9 ×10–4 eV
Option B : 5.9 ×10–6 eV
Option C : 5.9 ×10–8 eV
Option D : 11.8 ×10–6 eV
Show/Hide Answer Key
Option B: 5.9 ×10–6 eV
E = hc/ λ = 3x 108 x 6.62 x 10-34 / 0.21 x 1.6 x 10-19 = 5.9 x 10-6 eV
CUET Physics Practice Questions No: 8
The energy of a photon of light of wavelength 450 nm is
Option A : 4.4 ×10–19 J
Option B : 2.5 ×10–19 J
Option C :1.25 ×10–17 J
Option D : 2.5 ×10–17 J
Show/Hide Answer Key
Option A: 4.4 ×10–19 J
E = hc/ λ
= 6.62 x 10-34 x 3 x 108 / 450 x 10-9 = 4.4 x 10-19 J
CUET Physics Sample Paper Question No: 9
If a photon has velocity c and frequency , then which of following represents its wavelength?
Option A : hc/E
Option B : Hv/c
Option C : hv/c2
Option D : hv
Show/Hide Answer Key
Option A: hc/E
E = hc/ λ = λ = hc/ E
CUET Physics Mock Test Question No: 10
Einstein’s photoelectric equation states that EK = hv–∅ . In this equation EK refers to
Option A : Kinetic energy of all the emitted electrons
Option B : Mean kinetic energy of the emitted electrons
Option C : Maximum kinetic energy of the emitted electrons
Option D : Minimum kinetic energy of the emitted electrons
Show/Hide Answer Key
Option C: Maximum kinetic energy of the emitted electrons
According to Einstein’s photoelectric equation, EK refers to maximum kinetic energy of the emitted electrons.
CUET Physics Question No: 11
As the intensity of incident light increases
Option A : Photoelectric current increases
Option B : Photoelectric current decreases
Option C : Kinetic energy of emitted photoelectrons increases
Option D : Kinetic energy of emitted photoelectrons decreases
Show/Hide Answer Key
Option A: Photoelectric current increases
Intensity increases means more photons of same energy will emit more electrons of same energy, hence, only photoelectric current increases.
CUET Exam Physics Question No: 12
The photoelectric effect can be understand on the basis of
Option A : The principle of superposition
Option B : The electromagnetic theory of light
Option C : The special theory of relativity
Option D : Line spectrum of the atom
Show/Hide Answer Key
Option D: Line spectrum of the atom
Photoelectric effect can be explained on the basis of spectrum of an atom.
CUET UG Physics Question No: 13
The minimum wavelength of photon is 5000 Å, its energy will be
Option A : 2.5 eV
Option B : 50V
Option C : 5.48 eV
Option D : 7.48 eV
Show/Hide Answer Key
Option A: 2.5 eV
E = 12375/ λ = 12375/ 5000 = 2.47 Ev = 2.5eV
CUET Domain Subject Physics Question No: 14
In photoelectric effect, the electrons are rejected from metals if the incident light has certain minimum
Option A : Wavelength
Option B : Frequency
Option C : Amplitude
Option D : Angle of incidence
Show/Hide Answer Key
Option B: Frequency
In photoelectric effect for a given photosensitive material, there exists a certain minimum cut-off frequency, called the threshold frequency, below which no emission of photoelectrons takes place no matter how intense the light is.
CUET BSc Physics Question No: 15
The idea of matter waves was given by
Option A : Davisson and Germer
Option B : de-Broglie
Option C : Einstein
Option D : Planck
Show/Hide Answer Key
Option B: de-Broglie
The idea of matter waves was gives by deBroglie.
CUET Entrance Exam Physics Question No: 16
Wave is associated with matter
Option A : When it is stationary
Option B : When it is in motion with the velocity of light only
Option C : When it is in motion with any velocity
Option D : None of these
Show/Hide Answer Key
Option C: When it is in motion with any velocity
According to de-Broglie hypothesis, wave is associated with matter when it is in motion with any velocity.
CUET Exam Question No: 17
The de-Broglie wavelength associated with the particle of mass m moving with velocity v is
Option A : h/mv
Option B : mv/h
Option C : mh/v
Option D : m/hv
Show/Hide Answer Key
Option A: h/mv
λ = h/P = h/mv
CUET Physics Practice Questions No: 18
A photon, an electron and a uranium nucleus all have the same wavelength. The one with the most energy
Option A : is the photon
Option B : is the electron
Option C : is the uranium nucleus
Option D : depends upon the wavelength and properties of the particle.
Show/Hide Answer Key
Option A: is the photon
λ = h/P = h/ mv = h/ √ 2me
CUET Physics Sample Paper Question No: 19
A particle which has zero rest mass and non-zero energy and momentum, must travel with a speed
Option A : Equal to c, the speed of light in vacuum
Option B : Greater than c
Option C : Less than c
Option D : Tending to infinity
Show/Hide Answer Key
Option A: Equal to c, the speed of light in vacuum
Particle is photon and it travels with the velocity equal to light in vacuum.
CUET Physics Mock Test Question No: 20
Particle nature and wave nature of electromagnetic waves and electrons can be shown by
Option A : Electron has small, deflected by the metal sheet
Option B : Ex-ray is diffracted, reflected by thick metal sheet
Option C : Light is refracted and defracted
Option D : Photoelectricity and electron microscopy
Show/Hide Answer Key
Option D: Photoelectricity and electron microscopy
In photoelectric effect particle nature of electron is shown. While in electron microscope, beam of electron is considered as electron wave.
